People involved people at OAB: Delpino, Lolli.
Experiences have been made in the field of object programming, with particular reference to the Java language and C. The former in fact presents advantages as one is interested in developing platform independent Web applications. The trend of extending the field of scientific application usability beyond on the usual local area limits, making them available for the whole Internet community, is presently well established. Nevertheless that implies the use of complex and sophisticated techniques for planning and programming new applications. On the other hand, recently a new interest in applications using data organized inside a database raised up. The different techniques presently available for Web integration of both applications and databases have been studied and compared. A pilot project, LiREP, is being realized. LiREP is a web application for searching and retrieving astronomical data, images and spectra, from catalogs. It makes use of a web interface and back-end Java scripts to query the database holding catalogs. Several catalogues are yet available using the web interface and the job will be fully accomplished within June 2003. Moreover, using the same technique, a new project for the realization of a metadirectory is in advanced state of realization. That will give users the opportunity to pubblish in Internet their own catalogues and data sets. Finally Delpino is involved in the project of a Directory Service for both the Astronomical Observatory and the Astronomy Department of the University, which will support many istitutional services (Internet mail, single sign-on, security access, ...)